I tried to use the extra port of Stimtracker, which is supposed to provide 5 more event markers, to communicate with Biosemi, It seems that the extra port adds 2 more light sensors input, making the first event bit change from number 32 to number 128 in Biosemi. I have tested the extra light sensors input, and they work. But the event markers 2-8 from Stimtracker seem to be blocked by Biosemi. The marker's LED on StimTracker’s front panel is on if we send event bit 2-8. But biosemi only receives the first event bit...Can anybody help out?
Thank you very much.
Dolly

Hi, we use the 2x25 -> 1x37 adapter provided by stimtracker. By using the default cfg file , if I put event markers 1-3 to high (using python script : win.callOnFlip(dev.activate_line,[1,2,3]), trigger 8,9,10 in active two will be activated respectively. However, event markers 4-8 only work when I put them to low (using pthyon script: win.callOnFlip(dev.clear_line,[4,5,6,7,8]). But all the event markers 4-8 just activate trigger 11 in active two.
Can you kindly help out?